Pillar lock



S. F. BRIGGS ET AL PILLAR LOCK Filed April 16, 1924 WITNES SE biles for locking the Patented Dec. 2Q, 1325 UNITED STEPHER' IE. BRIGGS STATES,

I gar-suit OFFICE.

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fmcon or HILVJAUKEE,

ro ances a s'rmzrron conrona'rion, or a comma-Ion -or DELAWABfi WISCONSIN, .AS-

. mmntocx.

Application. filed April is, 1924. Serial No. mesa.

To all whom it may con/demo:

Be it known that we.

and Enwsan N. JAoonI, both citizens and residents of Milwauthe United States,

Srrsrnnn FfB-moos ,of

kee, in the county of Milwaukee and State of Wiscogsin, have invented new vements in Pillar Locks,

ful Impr the following is a description, ing had to the" accompanying which are a partof this This invention and useof which reference bedrawings, specification.

has for its object to provide a lock suitable for the doors of automoby ineans" of a key from door latch mechanism the outside and has the construction so as to effect economie in manufacture without sacrificing any of the essential characteristics of a lock of this type.

With the above and other objects in view the invention consists in the pillar lock as herein claimed and all equivalents.

Reierrin tothe accompanying drawings,

in which like characters of reference indicate the same parts in diiierent "iews,

Fig. 1 is a sectional elevation of a pillar lock constructed in accordance wlth this invention and showing also the lock dog to be engaged by the square lock to plane; B 1g.

Fig. 4: is a sectional Fig. 51s a sectional view 3 is a front view I stem of the pillar be turned thereby locking engagement of the for effecting a door latch;

different thereof; rear view thereof; on the plane of line 5-5 of Fig. 2, and

Fig. .6 is aperspective In these drawings, l0 flanged bushing, within the key 1,)!-

bus ing,

view of the spring. indicates the usual which the lock barreel 11. is adapted to be turned by means of fitting there1n.

steel? of being entered from however, is entered from the-front The barrel, inthe back of the 12 engages a flange to take the end thrust.in I

one direction, while a'thin sheet metal shell 14, which may be spun around the flange of the shoulder 15 of in thdopposite may be said to be or otherwise fitted bushing, engages a the barrel to take end thrust direction so that the I rotatably mountedbebarrel tween the flan e13 and the edge of the shell 14. This shel has another very important purpose in that it may be made of highly as shown in Fig. 5.

polished metal and, as it completely covers the front of the bushing, it dispenses'with the necessity for nickel-plating and polishingthe bushing. I y

The barrel 11 is provided with the usual slide'tumblers 16, throughv the openings vof which the key passes and by their fitting relatiorrwith the irregular key surface are brought to positions so that their ends lie flush with the surface of the barrel, permitting the barrel to be turned in the bushing. In two positions of the barrel, the tumbler slides may project from the barrel into grooves 17 of the bushing, thus permitting the key to be removed and preventing the turning of the barrel in the bushing. In order to form a detent indicating these two positions, a spring-pressed ball 18 is contamed in an opening in the bushing and en-' gages either of two notches 18 in the barrel,

bowed leaf spring 19- with its ends loosely confined in slots of the cut-away portion of the bushing and sand spring is retained against removal from said slots by having an opening 20 into which the ball projects. The ball is thus confined by the spring and the spring is confined by the ball without thenecessity for further fastening means. As it is not feasible to require the bushing to be accurately centered with respect to the lock do r 21 of the door latch, it is necr; sary that tune should be'a certain amount of freedom in the connection of the sqoure stem 22 with the lock barrel, and this has usually been'provided by pivotally mountiplg' a flattened end of the stem in a slot of t e the parish) ermit of disallgnment and still provide the driving connection necessary for operating the lock dog. With this invention, however, a connection less liable to noise and wearis provided by forming the lock bar rel with a square socket in its end sufficiently larger than the square stem 22 to permit of disalignment, but maintaining driving connections between them when the end of said stem is inserted therein'and then loosely confining the stem in said socket by driving a, wire staple 23 through openings in the barrel provided for that purpose, the legs of the staple passingthrough a groove 24; surroundin the stem, as shown in Fig: 1, 2, and 4, an being clinched at their en The ball is pressed by a lock barrel, with suflicient play between as at 25, to form. a, conicel To enable the end of the square stern 22 readily final its way within the square ope-sing of the loci; tlog 21 as the ports are essemhled in the door, said end is tapered,

oint.

lit will-be noted that the ock of this invention is greatly simplified in its construction, melting it less expensive to manufactore by the elimination of screw threads, rivets and various machine work and icy the use oi the polished motel shell which avoids the necessity for nickel-plating the bushing and at the some time serves to retain the lock barrel in place. The cletent hell ancl its spring interlock so as to be mutually dependent end the manner of fitting the square stem in the lock barrel more eliectively accomplishes the purpose of maintaining e permanent (lriving connection and still permitting of angular variations between the axis of the lock barrel and the axis of the lock dog, which is to be operated thereby for blocking the operation of the door latch to lock the door. This method of connecting the ports furthermore, is one that is easily accomplished by the use of the ordinary tools anti does not necessitate riveting or the like. flhe pointed end of the sqnere stein 'eetly facilitates the assembling oi the 306k it eneloles the stem to fincl its wav into the opening of the lock dog notwithstanding the dis-alignment of pert-s:

Who-t we claim as new and desire to secure by Letters l etent is:

1. ln e. 1051;, e bushing having a flange, it look barrel rotetohly mounted in the husl w end fitting against the flange, and ii, .erl metal shell extending over the the bushing enll confining the lock ba rel in piece, the finish of said shell serv the finish for the end of the bushing. in lock, it bushing having or flanged we, locklmrrel rotstebly fittin in the hashing proviclcrl with e shoul er at its women end, and e thin sheet metal shell fitting around; the end and flenge of the bushing and tent notch, e bell contained in an opening" of the bushing, a leaf-spring having its ends loosely confined in slots of the bushing end having on opening through which the hell projects whereby the spring urges the hell into engagement with the notch to form e cletent and the projection of the ball through the opening of the spring prevents the displacement of the spring.

5. In a lock, 22. rotatably mounted lock barrel, 3, square stem loosely fitting in a square socket in the end or the lock barrel end provided with a reduced neck portion, and a steple passing'throu h the end of the lock barrel with its mem ers embracing the reduced neck portion of the stem.

6. In a lock, it bushinghaving an ornamental flanged end and provided with a grooved hore with the grooves extemlin to the front flanged end thereof, a lock gerrel fitting within the bore of the bushing and a thin sheet metal skin covering for the ornamental flanged end of the bushing conforming therewith and coverin the ends of the grooves and engaging the ock barrel to form an end thrust bearin therefor.

In testimony whereof we a x our signs; tures.

STEPHEN F BRIGGS. EDWARD N. JACOBI. 

